Answered: Sleep Hours of U.S. College Students…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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Use a system of linear equations to solve:A number of studies have emphasized the importance of sleep for students’ success in their academic performance.The bar graph shows the actual sleep hours and the sleep hours to function best for U.S college students.A total of 45% of college students sleep between 5 and 7 hours or between 9 and 11 hours. The difference in the percentagewho sleep between 5 and 7 hours and between 9 and 11 hours is 41%. Find the percentage of college students who sleep between 5 and 7 hours and the percentage of college students who sleep between 9 and 11 hours.

Sleep Hours of U.S. College Students
Actual sleep hours
80%
Sleep hours to function best
66
70%
60%
50
50%
40%
30%
20
20%
12
10%
5
y
[3, 5)
[5, 7)
[7, 9)
[9, 11)
Sleep Hours
Percentage of College Students
2.

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